Window filter doesn't initially include some full-screen windows

[iliyang]

While playing around with the window switcher, I noticed a weird issue with hs.window.filter. Specifically, it does not reliably include full-screen windows until those windows are activated manually by switching to their special space.

Say I've just reloaded my Hammerspoon config and I execute the following code:

filter = hs.window.filter.new():setDefaultFilter{}
windows = filter:getWindows(hs.window.filter.sortByFocusedLast)

The returned table windows sometimes does not include some fullscreen windows. Once I activate those windows, it starts including them. But immediately after reloading my Hammerspoon config it doesn't.

And the behavior is not very deterministic. If I have two apps that have fullscreen windows, sometimes only one app's fullscreen window is missing, sometimes both apps'.

Again, this issue of fullscreen windows being excluded only happens after a fresh Hammerspoon config reload. Granted, I'm normally not supposed to do that very often, but it's a bit annoying, because the window switcher is my most used Hammerspoon feature and I need it to be rock solid.